Rules to guarantee and limit bandwidth per ip group

Hi everyone,

I am a new comer and admin in sophos and i want to configurate my sophos XG firewall to guarantee and limit bandwidth per ip group 

First of all i want to create a specifics IP groups by needed level (exemple : full , middle Band, low acces) and configurate a guarantee and limit bandwidth rules for this group.

Next if possible create too a default rule for all other ip adress in my network .

Thanks a lot for your help